Do your part to save the planet. Use the sun's rays to light up your cigarette!

Yes, I know, one should not even smoke, if you really want to go all the way. But, if you're going to smoke, you might as well do the best you can.

To the right is an image of one example of a solar lighter, and below you can watch a video of someone else's invention. I'm not sure if any of these are commercially available, but it surely looks like they do the trick.